Here’s why "St. Paddy's" is spelled that way, the origin of wearing green and which historic Florida town held the first American St. Patrick's Day parade.

Here’s why "St. Paddy's" is spelled that way, the origin of wearing green and which historic Florida town held the first American St. Patrick's Day parade.

St. Patrick's Day is celebrated to honor the life and death of St. Patrick, the patron saint of Ireland. He was believed to have died on March 17, which is why St. Patrick's Day falls on that day.